1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
|
# RUN: llc %s --start-after=livedebugvalues --dwarf-use-key-instructions --filetype=obj -o - \
# RUN: | llvm-objdump -d - --no-show-raw-insn \
# RUN: | FileCheck %s --check-prefix=OBJ
# RUN: llc %s --start-after=livedebugvalues --dwarf-use-key-instructions --filetype=obj -o - \
# RUN: | llvm-dwarfdump - --debug-line \
# RUN: | FileCheck %s --check-prefix=DBG
# Test is_stmt emission for a key-instructions function inlined into a
# not-key-instructions function, and vice versa.
--- |
target triple = "x86_64-unknown-linux-gnu"
define hidden noundef i32 @key() local_unnamed_addr !dbg !5 {
entry:
ret i32 0
}
define hidden noundef i32 @not_key() local_unnamed_addr !dbg !9 {
entry:
ret i32 0
}
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!2, !3}
!llvm.ident = !{!4}
!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_17, file: !1, producer: "clang version 21.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: LineTablesOnly, splitDebugInlining: false, nameTableKind: None)
!1 = !DIFile(filename: "test.cpp", directory: "/")
!2 = !{i32 7, !"Dwarf Version", i32 5}
!3 = !{i32 2, !"Debug Info Version", i32 3}
!4 = !{!"clang version 21.0.0"}
!5 = distinct !DISubprogram(name: "key", scope: !1, file: !1, line: 1, type: !6, scopeLine: 1, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, keyInstructions: true)
!6 = !DISubroutineType(types: !7)
!7 = !{}
!9 = distinct !DISubprogram(name: "not_key", scope: !1, file: !1, line: 1, type: !6, scopeLine: 1, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, keyInstructions: false)
!10 = distinct !DILocation(line: 5, scope: !5)
!11 = distinct !DILocation(line: 9, scope: !9)
...
---
name: key
alignment: 16
body: |
bb.0.entry:
; OBJ: 0000000000000000 <key>:
; OBJ-NEXT: 0: movl $0x1, %eax
; OBJ-NEXT: 5: movl $0x2, %eax
; OBJ-NEXT: a: movl $0x3, %eax
; OBJ-NEXT: f: movl $0x4, %eax
; OBJ-NEXT: 14: movl $0x5, %eax
; OBJ-NEXT: 19: retq
;
; DBG: Address Line Column File ISA Discriminator OpIndex Flags
; DBG-NEXT: ------------------ ------ ------ ------ --- ------------- ------- -------------
; DBG-NEXT: 0x0000000000000000 1 0 0 0 0 0 is_stmt prologue_end
; DBG-NEXT: 0x0000000000000005 2 0 0 0 0 0 is_stmt
; DBG-NEXT: 0x000000000000000a 2 0 0 0 0 0
; DBG-NEXT: 0x000000000000000f 3 0 0 0 0 0 is_stmt
; DBG-NEXT: 0x0000000000000014 3 0 0 0 0 0
;
$eax = MOV32ri 1, debug-location !DILocation(line: 1, scope: !5) ; is_stmt (prologue_end)
$eax = MOV32ri 2, debug-location !DILocation(line: 2, scope: !5, atomGroup: 1, atomRank: 1) ; is_stmt (key)
$eax = MOV32ri 3, debug-location !DILocation(line: 2, scope: !9, inlinedAt: !10)
$eax = MOV32ri 4, debug-location !DILocation(line: 3, scope: !9, inlinedAt: !10) ; is_stmt (not_key)
$eax = MOV32ri 5, debug-location !DILocation(line: 3, scope: !5, atomGroup: 1, atomRank: 2) ; is_stmt (key)
RET64 $eax, debug-location !DILocation(line: 3, scope: !5, atomGroup: 1, atomRank: 1)
...
---
name: not_key
alignment: 16
body: |
bb.0.entry:
; OBJ: 0000000000000020 <not_key>:
; OBJ-NEXT: 20: movl $0x1, %eax
; OBJ-NEXT: 25: movl $0x2, %eax
; OBJ-NEXT: 2a: movl $0x3, %eax
; OBJ-NEXT: 2f: retq
;
; Address Line Column File ISA Discriminator OpIndex Flags
; ------------------ ------ ------ ------ --- ------------- ------- -------------
; DBG-NEXT: 0x0000000000000020 1 0 0 0 0 0 is_stmt prologue_end
; DBG-NEXT: 0x0000000000000025 2 0 0 0 0 0
; DBG-NEXT: 0x000000000000002a 3 0 0 0 0 0 is_stmt
; DBG-NEXT: 0x000000000000002f 3 0 0 0 0 0
;
$eax = MOV32ri 1, debug-location !DILocation(line: 1, scope: !9) ; is_stmt (prologue_end)
$eax = MOV32ri 2, debug-location !DILocation(line: 2, scope: !5, inlinedAt: !11, atomGroup: 1, atomRank: 2)
$eax = MOV32ri 3, debug-location !DILocation(line: 3, scope: !5, inlinedAt: !11, atomGroup: 1, atomRank: 1) ; is_stmt (key)
RET64 $eax, debug-location !DILocation(line: 3, scope: !9)
...
|
